U.S. patent application number 11/352440 was filed with the patent office on 2006-12-28 for apparatus and method for collection of handwritten data.
This patent application is currently assigned to Intermec IP Corp.. Invention is credited to Arvin D. Danielson, Dennis A. Durbin, David C. Hacker, Jerry L. Walter.
Application Number | 20060291752 11/352440 |
Document ID | / |
Family ID | 27808945 |
Filed Date | 2006-12-28 |
United States Patent
Application |
20060291752 |
Kind Code |
A1 |
Hacker; David C. ; et
al. |
December 28, 2006 |
Apparatus and method for collection of handwritten data
Abstract
A data capturing module combined with a portable data terminal
of the hand-held type to record handwritten data. Using a digitized
pad, the module can provide for direct input of handwritten data
into the system, or a peripheral digital scanner can be employed to
provide for data entry. Depending upon the particular application,
the module therefore provides for data entry of handwritten text or
graphics using the data terminal and other components of a portable
data system to enter, display, print or otherwise communicate the
handwritten data.
Inventors: |
Hacker; David C.;
(Jacksonville, FL) ; Walter; Jerry L.; (Marion,
IA) ; Danielson; Arvin D.; (Solon, IA) ;
Durbin; Dennis A.; (Cedar Rapids, IA) |
Correspondence
Address: |
Michael F. Williams;Simmons, Perrine, Albright & Ellwood, P.L.C.
Suite 1200
115 Third Street SE
Cedar Rapids
IA
52401-1266
US
|
Assignee: |
Intermec IP Corp.
|
Family ID: |
27808945 |
Appl. No.: |
11/352440 |
Filed: |
February 8, 2006 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
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10663453 |
Sep 16, 2003 |
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11352440 |
Feb 8, 2006 |
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09135771 |
Aug 18, 1998 |
6621942 |
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10663453 |
Sep 16, 2003 |
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08790328 |
Jan 28, 1997 |
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09135771 |
Aug 18, 1998 |
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08306073 |
Sep 14, 1994 |
5598487 |
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08790328 |
Jan 28, 1997 |
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08275096 |
Jul 14, 1994 |
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08306073 |
Sep 14, 1994 |
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07852480 |
Mar 17, 1992 |
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08275096 |
Jul 14, 1994 |
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07415169 |
Sep 29, 1989 |
5123064 |
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07852480 |
Mar 17, 1992 |
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07451322 |
Dec 15, 1989 |
5227614 |
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07852480 |
Mar 17, 1992 |
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Current U.S.
Class: |
382/313 |
Current CPC
Class: |
B60R 11/02 20130101;
F02B 2075/027 20130101; H01Q 1/242 20130101; G06F 1/28 20130101;
G06K 7/10584 20130101; G06K 7/10881 20130101; G06F 1/163 20130101;
Y02D 10/00 20180101; G06K 7/10722 20130101; G06K 9/00174 20130101;
H04B 1/3883 20130101; G07G 1/0045 20130101; B60R 11/0241 20130101;
G06K 7/10732 20130101; G06K 7/1098 20130101; G06K 7/1093 20130101;
G07F 7/02 20130101; H04W 88/02 20130101; Y02D 10/159 20180101; G06F
1/3228 20130101; G06F 3/002 20130101; G06K 7/10574 20130101; G06K
7/10702 20130101; G06F 3/04886 20130101; G06K 7/10841 20130101;
G06K 17/0022 20130101; G06F 3/0231 20130101; G06K 9/00154 20130101;
G06Q 20/343 20130101; G06F 3/04883 20130101; G06K 7/12 20130101;
H04B 2001/3894 20130101; G06K 7/10851 20130101; G06F 1/3203
20130101; G06F 2200/1635 20130101; G06K 7/10811 20130101; G06F
1/1632 20130101; G06F 1/1656 20130101; G06F 1/169 20130101; G06F
1/1626 20130101; H01Q 1/2258 20130101 |
Class at
Publication: |
382/313 |
International
Class: |
G06K 9/22 20060101
G06K009/22 |
Claims
1. A data collection apparatus, comprising: a user-supportable
housing; an optical reader; and a computerized processing system,
located in said user-supportable housing, communicatively coupled
with said optical reader; wherein said optical reader is operable
to read handwritten data and wherein said computerized processing
system is operable to store handwritten data read by said optical
reader.
2. The data collection apparatus of claim 1, wherein said optical
reader is operable to read handwritten data such as a human
signature and wherein said computerized processing system is
operable to store handwritten data such as a human signature read
by said optical reader.
3. The data collection apparatus of claim 1, wherein said optical
reader is operable to read handwritten data such as human-generated
text and wherein said computerized processing system is operable to
store handwritten data such as human-generated text read by said
optical reader.
4. The data collection apparatus of claim 1, wherein said optical
reader is operable to read handwritten data such as human-generated
graphics and wherein said computerized processing system is
operable to store handwritten data such as human-generated graphics
read by said optical reader.
5. The data collection apparatus of claim 1, wherein said
user-supportable housing comprises a handgrip section, said
handgrip section having a cross-section of a size capable of being
held in one hand with fingers and opposing thumb embracing opposite
sides of said handgrip section.
6. The data collection apparatus of claim 1, further comprising a
handwriting receiving component.
7. The data collection apparatus of claim 1, further comprising a
removable handwriting receiving component, physically coupled with
said user-supportable housing, wherein said removable handwriting
receiving component can be removed from said user-supportable
housing by a user.
8. The data collection apparatus of claim 1, further comprising a
user-interface, said user-interface supported by said
user-supportable housing, and wherein said user-interface is
communicatively coupled with said computerized processing
system.
9. The data collection apparatus of claim 1, wherein said optical
reader is a digital optical reader, said digital optical reader
being capable of communicating read handwritten data to said
computerized processing system as digitized data.
10. A method of reading handwritten information with a data
collection apparatus, comprising the steps of: aiming an optical
reader at handwritten information, the optical reader
communicatively coupled with a computerized processing system of a
user-supportable data collection apparatus; imaging the handwritten
information at which the optical reader is aimed; digitizing the
imaged handwritten information; and storing the digitized
handwritten information in the user-supportable data collection
apparatus by the computerized processing system.
11. The method of claim 10, wherein said aiming step comprises
aiming an optical reader at handwritten information including a
signature.
12. The method of claim 11, further comprising the step of
verifying a stored signature.
13. The method of claim 11, wherein said storing step stores a
signature for future verification.
14. The method of claim 10, wherein said aiming step comprises
aiming an optical reader at handwritten information including
human-written text.
15. The method of claim 10, wherein said aiming step comprises
aiming an optical reader at handwritten information including
human-drawn graphics.
16. The method of claim 10, further comprising the steps of:
attaching a handwriting receiving component to a user-supportable
data collection apparatus; and writing handwritten information on
the attached handwriting receiving component.
17. The method of claim 10, further comprising the steps of:
attaching a user-removable handwriting receiving component to a
user-supportable data collection apparatus; and writing handwritten
information on the attached user-removable handwriting receiving
component.
18. A data collection apparatus, comprising: means for providing a
user-supportable housing; means for optically reading handwritten
information; and means for computerized processing of read
handwritten information, located in said means for providing a
user-supportable housing, communicatively coupled with said means
for optically reading.
19. The data collection apparatus of claim 18, wherein said means
for optically reading is operable to read handwritten data such as
a human signature and wherein said means for computerized
processing is operable to store handwritten data such as a human
signature read by said means for optically reading.
20. The data collection apparatus of claim 18, wherein said means
for optically reading is operable to read handwritten data such as
human-generated text and wherein said means for computerized
processing is operable to store handwritten data such as
human-generated text read by said means for optically reading.
21. The data collection apparatus of claim 18, wherein said means
for optically reading is operable to read handwritten data such as
human-generated graphics and wherein said means for computerized
processing is operable to store handwritten data such as
human-generated graphics read by said means for optically
reading.
22. The data collection apparatus of claim 18, wherein said means
for providing a user-supportable housing comprises means for
providing a handgrip, said means for providing a handgrip having a
cross-section of a size capable of being held in one hand with
fingers and opposing thumb embracing opposite sides of said means
for providing a handgrip.
23. The data collection apparatus of claim 18, further comprising
means for receiving handwritten information.
24. The data collection apparatus of claim 18, further comprising
means for providing a user-removable handwriting receiving
component, physically coupled with said means for providing a
user-supportable housing.
25. The data collection apparatus of claim 18, further comprising
means for interfacing with a user, supported by said means for
providing a user-supportable housing, and wherein said means for
interfacing with a user is communicatively coupled with said means
for computerized processing.
26. The data collection apparatus of claim 18, wherein said means
for optically reading comprises means for digitally optically
reading, said means for digitally optically reading communicating
read handwritten data to said means for computerized processing as
digitized data.
Description
AUTHORIZATION PURSUANT TO 37 C.F.R. 1.71(d)(e)
[0001] A portion of the disclosure of this patent document contains
material which is subject to copyright protection. The copyright
owner has no objection to the facsimile reproduction by anyone of
the patent document or the patent disclosure, as it appears in the
Patent and Trademark Office patent file or records, but otherwise
reserves all copyright rights whatsoever.
CROSS REFERENCE TO RELATED APPLICATIONS
[0002] The present application is a continuation-in-part of the
following co-pending applications: TABLE-US-00001 Attorney Ser. No.
Filing Date Inventor(s) Docket No. 07/415,169 Sep. 29, 1989 D.
Hacker 6943 J. Walter 07/451,322 Dec. 15, 1989 A. Danielson 5769Y
D. Durbin
[0003] The foregoing co-pending applications refer to the following
earlier applications pursuant to 35 U.S.C. 120, and reference is
hereby made to these earlier applications herein in accordance with
the provisions of 35 U.S.C. 120: TABLE-US-00002 Attorney Ser. No.
Filing Date Inventor(s) Docket No. 07/143,921 Jan. 14, 1988 A.
Danielson 5769X (now abandoned) D. Durbin 06/897,547 Aug. 15, 1986
D. Durbin 5769 (now abandoned) R. Lo G. Welsch S. Kelly
[0004] Each of the foregoing listed co-pending and earlier
applications is hereby incorporated herein by reference in its
entirety including drawings and appendices.
BACKGROUND OF THE INVENTION
[0005] Hand-held data terminals or computers are commercially
available for use in a variety of applications, including the
distribution and control of products distributed by a route sales
person. These hand-held data terminals provide the route sales
person with the latest product and customer information as well as
information regarding the inventory of the products being
distributed. As products are distributed to the customer and other
products picked up for return, this information is entered into the
terminal together with payment or pricing information. Thus, these
hand-held data terminals are useful in many application for order
entry, inventory control and route accounting in any industry where
a product is being distributed.
[0006] Although these hand-held data terminals as a part of a
distribution system have greatly increased the accuracy and
efficiency of product distribution, there are situations where it
is desirable to allow the capture and recording of handwritten data
rather than data that is entered by keystrokes. One such use would
be to provide for the recording of signatures and for verification
of the signatures recorded. In some applications, digitized pads
are available to permit the entry of handwritten data, usually in
situations where the data is entered by marking a predetermined
location on a form that overlies the pad. However, to date there
does not appear to be available any means for combining a
handwritten data entry module with a portable data terminal in such
a way that the handwritten data can be directly entered or read and
entered by a scanner.
SUMMARY OF THE INVENTION
[0007] The invention provides a means for recording and entering
handwritten data in combination with a portable hand-held data
terminal. The invention provides a module that is removably
attachable to a hand-held computer terminal, which module allows
the capture of handwritten data. In a preferred embodiment, the
module provides a means for capturing handwritten data which is
then read by an optical scanner and entered into the system. In the
alternative, the module contains a digitized pad which can capture
and enter the handwritten data immediately as it is entered on the
pad. The preferred module of the invention is easily and quickly
attached to a hand-held computer terminal by a hook-hinge
arrangements using the existing connector on the computer terminal
and a connector on the module. In the embodiment of the module
using a digitized pad, the module and hand-held terminal provide an
integrated system while allowing normal hand-held portable
operation with the module in place.
BRIEF DESCRIPTION OF THE DRAWINGS
[0008] FIG. 1 is a perspective view of a hand-held data terminal
with the module of the invention in place;
[0009] FIG. 2 is a front elevational view of the module;
[0010] FIG. 3 is a sectional view of the module;
[0011] FIG. 4 is a top view of the module, partly in section;
[0012] FIG. 5 is a bottom view of the module; and
[0013] FIG. 6 is a perspective view of another hand-held data
terminal with a signature pad module in place;
[0014] FIG. 7 is a front elevational view of the module;
[0015] FIG. 8 is a sectional view of the module;
[0016] FIG. 9 is a top view of the module, partly in section;
[0017] FIG. 10 is a bottom view of the module;
[0018] FIGS. 11 and 12 show exemplary circuitry for the
input/output printed circuit board of the embodiment of FIGS.
6-10.
[0019] FIGS. 13-16 show exemplary circuitry for the CPU printed
circuit board of the embodiment of FIGS. 6-10;
[0020] FIG. 17 is a partial plan view showing a computerized
processor module assembled in a receiving module and operating in
signature: input mode; and
[0021] FIG. 18 shows the computerized processor module displaying
the results of a signature verification operation for the case
where the processor module functions as a separate self-contained
unit using its own battery power.
DESCRIPTION OF THE PREFERRED EMBODIMENT OF THE INVENTION
[0022] Referring first to FIG. 1 of the drawing, there is
illustrated a hand-held data terminal or computer terminal 10 of a
type suitable for use with the module of the invention. A computer
terminal such as the Model NT141GL hand-held computer terminal of
Norand Corporation, Cedar Rapids, Iowa, has the necessary power and
flexibility for this application. The computer terminal 10 has a
keyboard 12 and a display 14. In addition to keyboard entry, data
can be downloaded to the computer terminal 10 from a host computer
or entered from a peripheral device such as a scanner.
[0023] The module providing for the entry of handwritten data is
indicated generally by the reference numeral 16 and is shown in
more detail in FIGS. 2 through 5. The module 16 consists of a
suitable case 18 that houses a pad 20 for recording data in the
manner described hereinafter. The case 18 has formed along the
lower edge near the front a depending hinge 22 having a lug 24
extending along its entire length. Also, along the bottom surface
25 of the module 16 near the rear wall 26 is a cable plug 28 that
will engage with a standard receptacle (not shown) on the top
surface of the hand-held computer terminal 10. Plug 28 and the
receptacle provide a standard 15-pin connection between these
components. Near the rear of top surface 32 of module 16 there is
provided a suitable 15-pin receptacle 34 that provides for
connection of other external devices. The receptacle 34 and plug 28
are suitably interconnected by cable 36 inside of the case 18.
[0024] The hinge 22 with its locking lug 24 provided for easy,
quick and removable connection of the module 16 to the computer
terminal 10. By engaging the locking lug 24 under a corresponding
shoulder 38 in the top surface of computer terminal 10 and rotating
the module 16 rearwardly until the plug 28 on the module 16 engages
the receptacle on the computer terminal 10, the module 16 is
quickly and solidly affixed to the computer terminal 10 and all
necessary connections made between plug 28 and receptacle. As will
become more evident from the description hereinafter, the force
applied by a user to the module 16 by entering handwritten data on
the pad 20 will bias the module 16 further into a locked position
on the computer terminal 10. In order to remove the module 16 from
the computer terminal 10, the module 16 is grasped and rotated
forwardly in the direction opposite to the force that is applied
during use. Thus, connection between the module 16 and computer
terminal 10 is a solid, positive connection that is quickly and
easily made.
[0025] The pad 20 can be of any suitable type for recording
handwritten data. If a suitable optical scanner (not shown) is to
be used as a part of the system, the pad 20 can very simply be any
suitable means in which handwritten data can be visibly recorded so
that it can be scanned and entered into the system by the scanner.
Suitable optical scanners are available for reading handwritten
data of all types and processing the information read digitally and
entering the digitalized data into the computer terminal 10. A
suitable optical scanner for this purpose is described in the U.S.
patent application Ser. No. 07/238,701, filed Aug. 31, 1988, by
Steven E. Koenck, (Attorney Docket No. 6240), which application has
been assigned to Norand Corporation, the same assignee of this
application.
[0026] The pad 20 also may be a digitized pad of any suitable type
containing resistive sheets 40 (FIG. 4) responsive to operating
pressures in a suitable range normally applied by a user using a
ballpoint pen. The digitized pad 20 using resistive sheets 40
preferably has sufficiently high resolution to provide an accurate
representation of handwritten data including signatures. The
resistive sheets 40 are preferably covered with an abrasion
resistive cover 42 of a suitable polyester material. When the user
enters data onto pad 20 by supplying sufficient pressure with a
writing instrument to activate the resistive sheets 40, the
information is digitized, compressed, stored and processed by the
computer terminal 10. For example, if the module 16 is being used
signature verification, a signature written on pad 20 can be
immediately verified or stored for future verification.
[0027] From the foregoing description, it is evident that the
module of the invention provides the capability of capturing and
recording handwritten data of all types, which data can be entered
either directly using a digitizing pad on the module or the
handwritten data can be entered into the data terminal by a
suitable optical scanner for further processing. All types of
handwritten data, including both texts and graphics, can be
captured using the module of the invention in connection with a
portable hand-held data terminal. One example that has been
described is the verification of signatures, but any handwritten
data can be entered directly or scanned into the terminal, the
amount of data being limited by the available memory. The module of
the invention thus provides a vehicle for significant data entry
means not presently available with hand-held type computer
terminals.
Description of FIGS. 6 to 10
[0028] FIGS. 6 to 10 show a signature pad module with dimensions of
2.870 inches (length), 1.500 inches (width) and 2.27 inches
(height). Accordingly such a module may be adapted to fit in a
pocket size shell configuration to form a self contained portable
battery operated system. The following description is considered
relevant in explaining further the significance of the graphical
input capability of the pocket size systems.
[0029] While hand-held data terminals have greatly increased the
accuracy and efficiency of product distribution, there are
situations where it is desirable to allow the capture and recording
of handwritten data rather than data that is entered by keystrokes.
One such use would be to provide for the recording of signatures
and for verification of the signatures recorded. In some
applications, digitized pads are available to permit the entry of
handwritten data, usually in situations where the data is entered
by marking a predetermined location on a form that overlies the
pad. However, to date there does not appear to be available any
means for combining a handwritten data entry module with a portable
data terminal in such a way that the handwritten data can be
directly entered or read and entered by a scanner.
[0030] In an illustrated embodiment, the module contains a
digitized pad which can capture and enter the handwritten data
immediately as it is entered on the pad. The illustrated module is
easily and quickly attached to a hand-held computer terminal by a
hook-hinge arrangement, using the existing connector on the
computer terminal and a connector on the module. In the embodiment
of the module using a digitized pad, the module and hand-held
terminal provide an integrated system while allowing normal
hand-held portable operation with the module in place. Referring
first to FIG. 6 of the drawings, there is illustrated a hand-held
data terminal or computer terminal 510 of a type suitable for use
with the signature pad module. A computer terminal such as the
Model NT141GL hand-held computer terminal of Norand Corporation,
Cedar Rapids, Iowa, has the necessary power and flexibility for
this application. The computer terminal 510 has a keyboard 512 and
a display 514. In addition to keyboard entry, data can be
downloaded to the computer terminal 510 from a host computer or
entered from a peripheral device such as a scanner.
[0031] The module providing for the entry of handwritten data is
indicated generally by the reference numeral 516 and is shown in
more detail in FIGS. 7 through 10. The module 516 comprises a
suitable case 518 that houses a pad 520 for recording data in the
manner described hereinafter. The case 518 has formed along the
lower edge near the front a depending hinge 522 having a lug 524
extending along its entire length. Also, along the bottom surface
525 of the module 516 near the rear wall 526 is a cable plug 528
that will engage a standard receptacle (not shown) the top surface
of the hand-held computer terminal 510. Plug 528 and the receptacle
provide a standard 15-pin connection between these components. Near
the top surface 532 of module 516 there is provided a suitable
15-pin receptacle 534 that provides for connection of other
external devices. The receptacle 534 and plug 528 are suitably
interconnected by means including ground cable 536 inside of the
case 518.
[0032] The hinge 522 with its locking lug 524 provides for easy,
quick and removable connection of the module 516 to the computer
terminal 510. By engaging the locking lug 524 under a corresponding
shoulder at 538 in the top surface of computer terminal 510 and
rotating the module 516 rearwardly until the plug 528 on the module
516 engages the receptacle on the computer terminal 510, the module
516 is quickly and solidly affixed to the computer terminal 510 and
all necessary connections made between plug 528 and its mating
receptacle. The force applied by a user to the module 516 in
entering handwritten data on the pad 520 will bias the module
further into a locked position on the computer terminal 510. In
order to remove the module 516 from the computer terminal 510, the
module 516 is grasped and rotated forwardly in the direction
opposite to the force that is applied during use. Thus, connection
between the module 516 and computer terminal 510 is a solid,
positive connection that is quickly and easily made.
[0033] The pad 520 can be of any suitable type for recording
handwritten data. If a suitable optical scanner (not shown) is to
be used as a part of the system, the pad 520 can very simply be any
suitable means in which handwritten data can be visibly recorded so
that it can be scanned and entered into the system by the scanner.
Suitable optical scanners are available for reading handwritten
data of all types and processing the information read digitally and
entering the digitized data into the computer terminal 510. A
suitable optical scanner for this purpose is described in the U.S.
patent application Ser. No. 07/238,701, filed Aug. 31, 1988, by
Steven E. Koenck, (Attorney Docket No. 6240), which application has
been assigned to Norand Corporation, the same assignee of this
application.
[0034] The pad 520 also may be a digitizer pad of a any suitable
type containing resistive sheets forming a digitizer means 540
(FIG. 9) responsive to operating pressures in a suitable range
normally applied by a user using a ballpoint pen. The digitized pad
520 using resistive sheets at 540 preferably has sufficiently high
resolution to provide an accurate representation of handwritten
data including signatures. The resistive sheets at 540 are
preferably covered with an abrasion resistant cover 542 of a
suitable polyester material. When the user enters data onto pad 520
by supplying sufficient pressure with a writing instrument to
activate the resistive sheets at 540, the information is digitized,
compressed and stored and/or transmitted to the computer terminal
510. For example, if the module 516 is being used for signature
verification, a signature written on pad 520 can be immediately
verified or stored for future verification.
[0035] From the foregoing description, it is evident that the data
capture module provides the capability of capturing and recording
handwritten data of all types, which data can be entered either
directly using a digitizing pad on the module, or the handwritten
data can be entered into the data terminal by a suitable optical
scanner for further processing. All types of handwritten data,
including both text and graphics, can be captured using the module
in connection with a portable hand-held data terminal. One example
that has been described is the verification of signatures, but any
handwritten data can be entered directly or scanned into the
terminal, the amount of data being limited by the available memory.
The module thus provides a vehicle for significant data entry means
not presently available with hand-held type computer terminals.
[0036] The actual volume occupied by the signature pad 520 and the
printed circuit boards 562 and 570 is about 13/4 inch (wide) by
31/4 inch (long) by about 13/8 inch (deep). This is consistent with
use with a pocket-size receiving module.
[0037] The pad active area may be 2.375 inches by 0.875 inch by
0.055 inch. The covering 542 may be 0.007 inch polyester. The pad
may utilize a silicone elastomer pad sensor, and may provide a pad
resolution of 175 points per inch giving a resolution of 415 points
across and at least 150 points in height.
[0038] Generally the signature pad may comprise upper and lower
resistive sheets of silicone elastomer which have resistive ink
applied to the confronting faces so as to present uniform
resistivity over the surfaces. Application of point pressure to the
cover sheet 542 causes the resistive layers to contact at a
corresponding point.
[0039] For tractor fed forms, alignment pegs 563, 564 on the bezel
part 518B are used to engage in the form feed holes to hold the
form in position during the signature capture process. Should the
sensor pad 520 be damaged, the bezel part 518B including the sensor
pad can be replaced without replacing the entire unit. This is
accomplished by removing screws 553, 554 and pivoting parts 518A,
518B away from each other. The connector 560 can then be unplugged
from the input/output printed circuit board 562. The ground cable
536 may be separable at 568.
[0040] Printed circuit board 570 may carry components such as a CPU
chip (e.g. type 80C31), CMOS static RAM (e.g. 32K.times.8), and an
EPROM component (e.g. type 27C256) as indicated at 571, FIG. 9.
[0041] The printed circuit boards 562 and 570 are 13/8 inch by 3
inch by less than 1/16, inch and are separated from each other by
about one-half inch. Coupling between the digitizer pad 540 and the
circuitry of board 562 may be by means of two twin conductor
ribbons such as that indicated at 572, FIG. 9.
[0042] Referring to FIG. 8, it can be seen that case 518 is formed
of a base assembly 518A and a bezel assembly 518B. The bases
assembly includes an outwardly facing hook plate 550 which
interlocks with a receiving recess of the bezel assembly. The parts
518A, 518B are pivotal at the hook plate-recess into a snug
interfitting relationship, with edge 551 fitting into a receiving
channel of part 518B. The parts are then secured together by means
of screws 553, 554, FIG. 23. The channel may have a sealing strip
seated therein, e.g. a 0.052 inch diameter elastomer 12.5 inches
long.
[0043] Ribbon connectors 557, 558 from the 15-pin plug 528 and
15-pin receptacle 534 are provided with internal 16 position
receptacles 559, 560 which connect with headers on the input/output
printed circuit board 562. When the pad is disabled, communications
will pass between connectors 528 and 534 unmodified.
[0044] By way of an alternate example, the resistive sheets may be
of Mylar of five mils (0.005 inch) thickness. In any case,
conductive x-axis conductive strips may extend along the long edges
of the upper resistive layer, and Y-axis conductive strips may
extend along the short edges of the lower resistive layer, the
pairs of conductive strips being connected with conductors of
respective ribbons such as 572, FIG. 9.
[0045] Conveniently the outer sheet is somewhat longer in the
length and width dimensions so as to overlie a metal frame 573,
FIG. 9, while the inner sheet is seated in a recess within the
confines of the frame 573. The outer resistive sheet is then
fastened at its margins to the frame so that there is normally a
clearance air space of approximately ten to thirty mils (one mil
equals 0.001 inch) between the two resistive layers. The
confronting resistive surfaces may comprise graphite ink
resistive-surfaces as is well understood in the art.
Description of FIGS. 11 and 12
[0046] FIGS. 11 and 12 illustrate exemplary circuitry for the
input/output printed circuit board 562. FIG. 11 shows the circuitry
connected to the X and Y axis conductive strips of the signature
pad 520. For reading an X-axis dimension from the signature pad,
transistors 24-Q2, 24-Q5 and 24-Q6 are turned on to apply a
potential of five volts analog, (+5 A), through transistor 24-Q2 to
the Y+ conductor 2410 which leads to the Y axis strip at one end of
the inner resistive surface. The return path from the other end of
the inner resistive strip is via Y-conductor 2411 and transistor
24-Q6, creating a potential distribution along the long X-axis
dimension of the pad. The X-axis potential value at the point
contacting the outer resistive sheet is coupled via conductors 2412
and 2413 to the channel one input of analog to digital converter
24-U1 (e.g. type LTC1091).
[0047] Similarly, to read out a Y-axis value, transistors 24-Q3,
24-Q4 and 24-Q1 are turned on, and the Y-axis potential at the
contact point is read out via the inner resistive sheet and
conductors 2410 and 2414 leading to the channel zero input of the
analog to digital converter 24-U1.
[0048] In FIG. 12, line 2511 receives battery voltage MBATS from
the terminal 10. Line 2511 is coupled with pin 15 of connector 528,
via position 15 of receptacle 559, FIG. 21. The I/O printed circuit
board 562 connects position 15 of the header receiving receptacle
559 with position 15 of the header for receptacle 560. Line 2511
connects with line 2416, FIG. 11, and connects to the CPU printed
circuit board 570 via mating interboard connectors such as 573,
574, FIG. 8, a capacitor (not shown, 0.01 microfarad, 50 volts),
being connected between MBATS and ground in parallel with
25-TZ1.
[0049] Applying EXT EN to conductor 2512 serves to transmit a reset
signal to the processor of board 570 via 25-Q7, 25-Q10, 25-Q9 and
2513 (RESET).
[0050] The signals associated with the various positions of
connectors 528 and 534 are as follows: TABLE-US-00003 Connector 528
Connector 534 J1 1 TXD J2 1 TXD Out J1 2 DTR J2 2 DTR J1 3 RTS J2 3
RTS J1 4 RCT J2 4 RCT J1 5 RXD J2 5 RXD IN J1 6 CTS J2 6 CTS J1 7
DSR J2 7 DSR J1 8 CHG In J2 8 CHG In J1 9 GND J2 9 GND J1 10
XOVER/TXL J2 10 XOVER/TXL J1 11 PROX/RXC J2 11 PROX/RXC J1 12
SCAN/PWR J2 12 SCAN/PWR J1 13 EXT EN J2 13 N.U. J1 14 RCR/CD J2 14
RCR/CD J1 15 MBATS J2 15 MBATS J1 16 N.U. J2 16 N.U.
[0051] The symbols J1 and J2 actually refer to the headers on I/O
board 562 receiving connectors 559 and 560, respectively. Thus
position 16 is not used. Position 13 of J1 connects with line 2512,
position 1 connects with line 2520 and position 5 connects with
line 2521. Line 2522 connects with position 5 of J2, and line 2523
connects with position 1 of J2. The printed circuit board 562
provides direct connections between positions of J1 and J2
designated DTR, RTS, RCT, CTS, DSR, RCR/CD, RCT, CHG IN, XOVER/TXL,
and PROX/RSC, MBATS and GND.
[0052] The transistor 25-Q6 controls supply of power to the pad
regulator 25-REG1.
[0053] The interboard connectors on board 562 such as 573, FIG. 8,
are designated J3 and J4 carry the following signals.
TABLE-US-00004 J3 1 N.U. J4 1 ADCS J3 2 DI/O J4 2 RDX4 J3 3 ADCLK
J4 3 TXD3 J3 4 JY- J4 4 RESET J3 5 JY+ J4 5 GND J3 6 JX- J4 6 +5 V
J3 7 JX+ J4 7 MBATS
Description of FIGS. 13, 14, 15 and 16
[0054] FIGS. 13-16 show exemplary circuitry for the CPU board 570.
The interboard connectors on board 570 such as connector 574 are
designated P3 and P4 and connect with the CPU, 26-U5, of board 570
as indicated in the following table: TABLE-US-00005 CPU (Type
80C31) CPU Pin Pin Designation P3 1 N.U. P3 2 DI/9 9 P 1.7 P3 3
ADCLK 6 P 1.4 P3 4 JY- 5 P 1.3 P3 5 JY+ 4 P 1.2 P3 6 JX- 3 P 1.1 P3
7 JX+ 2 P 1.0 P4 1 ADCS 8 P 1.6 P4 3 TXD3 11 RXD P4 4 RESET 10 RST
P4 5 GND 22, 35 VSS, EA PR 6 +5 V 44 VCC
[0055] Pin 13 (TXD) of CPU 26-U5 connects via line 2610 (RXD3) with
the circuit of FIG. 14, which in turn drives line 2611 (RXD4).
MBATS line 2612 also connects with FIG. 14. Line 2614 connects with
the circuit of FIG. 15.
[0056] Pins of CPU 26-U5 designated AD7-AD0, respectively connect
with data bus 2910, FIG. 16. The pin of 26-U5 designated ALE
connects with latch 29-U2 and EPROM 29-U3 via line 2620. Pin 32 of
26-U5 ({overscore (PSEN)}) connects via line 2621 with 29-U3.
Address bus 2630 from pins designated A8-A15 of 26-U5 connects with
components 29-U3 and 29-U4 (a CMOS static random access memory,
e.g., 128K.times.8).
[0057] Pin {overscore (RD)} of CPU 26-U5 connects via line 2631,
pin {overscore (RAMEN)} connects via line 2632; and pin {overscore
(WR)} connects via line 2633, with 29-U4.
EXAMPLE VII
[0058] As an example pursuant to FIGS. 6-16, a signature pad may
have the configuration for interfitting in a receptacle. The
printed circuit boards 562 and 570 could be consolidated into a
single printed circuit board underlying the signature pad and
having comparable dimensions, e.g. about two inches by three
inches. The inputs and outputs from the consolidated circuit board
could comprise MBATS, GND, EXT EN, and the communication lines for
two-way alternate point-to-point communication. These inputs and
outputs could couple with a module at a region using mating surface
contacts.
[0059] Battery power could be available in the receiving module,
and protocol conversion and other functions of the terminal could
be performed by a modular processor. A touch screen could be
included at the three margins of the signature pad at the top
surfaces of the module.
[0060] By way of example, signatures as digitized by means of the
signature pad module could be transferred under the control of a
processor module to a data storage card inserted in a slot.
Alignment pegs such as 563, 564, FIG. 7, could form part of the
signature pad module, such that a touch screen would be accessible
to activate the signature pad module by transmitting EXT EN to the
pad module in response to actuation of a region of the touch screen
in signature capture mode.
[0061] Such touch screen would then signal when a signature had
been properly digitized and stored. The touch screen associated
with the module can accommodate the entire data capture command
set.
EXAMPLE VIII
(FIGS. 17 and 18)
[0062] In Example VIII, the circuitry of FIGS. 11-16 may be part of
a computerized processing module 3000, FIG. 17. A receiving module
3010 may receive the module 3000 and may have coupling means for
engagement with cooperating connection means 3001 of module
3000.
[0063] In this Example VIII, the receiving module 3010 may perform
the functions of data entry terminal 510, FIG. 6, and may provide
battery means 3002 capable of providing for battery operation of
the circuitry of FIGS. 11-16. In particular, receiving module 3010
would have coupling means for automatically engaging with the
connection means 3001 as module 3000 is inserted into a receptacle
3011 of module 3010. The coupling means and connection means 3001
could also-provide automatically completed signal communication
paths such as provided by the terminal connector automatically
mating with connector 528, FIG. 10, during assembly of parts 510
and 516, FIG. 6. The module 3010 may have ledges such as 3012 for
overlying the side edges of the module 3000, and may include
segmental spherical detents such as 3014 which are spring urged
into receptacle 3011 to retain the module 3000 therein. A notch
3015 may facilitate removal of the complete module 3000 as a unit
from the receptacle 3011.
[0064] The module 3010 may have a touch screen 3020. One of the
touch switch positions may be "Signature Input Mode" as indicated
at 3021. When this mode is selected by manually depressing region
3021, a graphic display is produced on module 3000 as indicated in
FIG. 17 which facilitates the handwritten entry of a signature e.g.
in a space indicated by a box displayed at 3022 with a signature
line at 3023, and a "start" box indicated by a dash line 3024.
[0065] Module 3000 may include a digitizer input screen 3025 over
substantially its entire length and width as viewed in FIG. 17, and
a graphic display e.g. of the dot matrix type may underlie the
digitizer screen and have a resolution sufficient to accurately
display handwritten data such as signatures and the like, as well
as indicia such as 3022, 3023, and 3024.
[0066] Where the signature is to be entered directly on the
digitizer screen 3025, a wooden stylus is conveniently used. In
this event, the display means of module 3000 may display the mode
at 3028 and suitable instructions at 3029.
[0067] Where a form with feed holes is to be engaged with pegs
3030, 3031 on module 3010, the form may have printed thereon
indicia such as 3022, 3023, 3024, "start", and 3029. In this case,
a conventional ball point pen may be used to enter the signature on
the form, and to apply a corresponding impression to the digitizer
input screen 3025 of FIG. 17.
[0068] By way of example, the computerized processing module 3000,
or a data storage card such as indicated at 3040 (inserted into a
slot) may store the authorized signatures of persons empowered to
approve a given transaction. Thus, a person delivering goods to
various establishments may download authorized signatures for a
given delivery into the module 3000 just prior to making the
delivery, or may select a respective data storage card 3040 from a
file thereof.
[0069] After the signature impression such as 3041 has been entered
in space 3022 of the digitizer input screen, the processor of
module 3000 or a processor 3042 of module 3010 may carry out a
comparison of the signature impression 3041 with the stored
authorized signatures. If there is a sufficient match with an
authorized signature the graphical display may indicate that the
signature was a valid authorized Signature as at 3044, FIG. 18. The
matching authorized signature of record may be displayed in space
3045, FIG. 18, or the name represented by the signature may be
simply printed in space 3045. A transaction number may be assigned
as indicated at 3046. Further, the signature 3047 corresponding to
impression 3041, as stored by module 3000, module 3010 or storage
card 3040 may be displayed at a region 3049 adjacent region 3045 so
that the operator can confirm the matching condition, or actually
make the decision as to whether the signature is to be accepted. Of
course, the signature as entered may be stored in fully digitized
form or in a suitably compacted form in module 3000, module 3010 or
storage card 3049.
DESCRIPTION OF EXAMPLE IX
[0070] Example VIII could be applied to the embodiment of FIGS.
6-16 as a further example, in which case the resistive type
digitizer screen 520 could be used for the direct entry of a
signature e.g. using a passive wooden stylus, and display 514 could
provide a resultant display such as indicated in FIG. 18, and could
display indicia such as 3028 and 3029, prior to entry of the
signature impression 3041. The signature comparison program, and
the set of authorized signatures could then be downloaded into the
data terminal 510, e.g. via connectors 534 and 528 from a data
storage system within a delivery vehicle or the like. Reference may
be made to U.S. Pat. No. 4,798,919 which teaches using the sensing
of pressure applied across the signature as a further parameter for
use in signature verification.
SUMMARY RE EXAMPLE VIII AND IX
[0071] In examples VIII and IX, computerized processing module 3000
provides for the computerized processing and storage of data as
described in detail in reference to FIGS. 6-16. The stored data
e.g. complete digitized information concerning a signature
impression 3041 may be transmitted from random access storage such
as indicated at 29-U4 via connection means 3001 to an external
receiving module such as 3010 or 510, FIG. 6. The computerized
processing module 3000 could be of size to fit in a shirt pocket as
with module 516, FIG. 6, e.g. a cross sectional perimeter of not
more than about eight inches and a length dimension of not more
than about five inches.
[0072] The connection means 3001 of module 3000 automatically
engages with the coupling means in receptacle 3011 as the module
3000 is inserted over detents 3014 and under ledges 3012 to
assemble the module 3000 with the receiving module 3010.
Correspondingly, the connection means 3001 is automatically
disengaged from the coupling means as the module 3000 is removed as
a unit from receptacle 3011 (e.g. with the use of one finger
inserted into notch 3015).
[0073] The digitizer input screen 3025 is transparent so that the
matrix type display there beneath is visible to the user through
the digitizer screen. Any of the digitizer technologies currently
available such as those referred to herein may be utilized. Both
the digitizer input and the graphical display of module 3000 have a
resolution to accurately record and display handwritten characters
such as represented by signatures 3041, 3045 and 3047. The data
such as signatures stored in module 3000 in complete digitized form
or in compacted form may be transmitted to the coupling means of
receiving module 3010 for utilization externally of module 3000.
For example, receiving module 3010 may have a programmed processor
at 3042 for comparing a signature impression data relating to a
signature impression 3041 with a set of authorized signatures
stored on a data storage card 3040.
[0074] The display of module 3000 may display indicia such as 3022,
3023, and 3024 for facilitating input of a signature impression
such as 3041 directly on the digitizer input screen 3025, or a form
may be located e.g. by pegs 3030, 3031 and itself have indicia
printed thereon. In Example IX, a conventional display screen at
514, FIG. 6, of a receiving module 510, may display instructions
adjacent a digitizer screen at 520, and may provide a display such
as indicated in FIG. 18, once a signature impression at 520 has
been compared with a set of authorized signatures stored by the
receiving module 510, FIG. 6.
[0075] Although the invention has been described in connection with
certain preferred embodiments thereof, it would be evident to those
skilled in the art that various revisions and modifications to the
preferred embodiment, as well as additional applications to those
described by way of example herein can be made without departing
from the spirit and scope of the invention. It is our intention
however that all such revisions and modifications that may be
obvious to those skilled in the art will be included within the
scope of the following claims.
* * * * *